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-rw-r--r--libm/e_cosh.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/libm/e_cosh.c b/libm/e_cosh.c
index ddfd0254b..1eb5b8303 100644
--- a/libm/e_cosh.c
+++ b/libm/e_cosh.c
@@ -77,3 +77,21 @@ double attribute_hidden __ieee754_cosh(double x)
/* |x| > overflowthresold, cosh(x) overflow */
return huge*huge;
}
+
+/*
+ * wrapper cosh(x)
+ */
+#ifndef _IEEE_LIBM
+double cosh(double x)
+{
+ double z = __ieee754_cosh(x);
+ if (_LIB_VERSION == _IEEE_ || isnan(x))
+ return z;
+ if (fabs(x) > 7.10475860073943863426e+02)
+ return __kernel_standard(x, x, 5); /* cosh overflow */
+ return z;
+}
+#else
+strong_alias(__ieee754_cosh, cosh)
+#endif
+libm_hidden_def(cosh)